Roller-grizzly



L. FINGER.

ROLLER GRIZZLY. APPLICATION FILED AUG-10.1918.

Patented Aug. 12,1919.

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ROLLER GRlZZLY.

' nvmvron a: ATTORNEYS WITNESSES L. PING-ER.

ROLLER GRIZZLY.

APPLICATION FILED AUG-10,1918. 1313,01 1 Patented .121919 g S 3 SH HEET3.

IN VENTOR LEO P/NGf/ WITNESSES A TTORNEYS UNITED STATES PATENT OFFICE.

LEO PING-ER, OF FALLON, NEVADA, ASSIGNOR OF ONE-HALF TO ZEB KENDALL, OFSAN.

' FRANCISCO, CALIFORNIA ROLLER-GRIZZLY.

' Specification of Letters Patent.

Patented Aug. 12, 1919.

Application filed August 10, 1918. Serial No. 249,286.

To all whom it may concern:

Be it known that I, LEO PINGER, a citizen of the United States, and aresident of Fallon, in the county of Churchill and State of. Nevada,have invented certain new and useful Improvements in Roller-Grizzlies,of which the following is a specification.

My invention is an improvement in grizzlies, and has for its object toprovide a grizzly of the roller type, especially adapted for use in oremilling and in connection with rock crushing, to handle mine run of ore,coal or quarry product, wherein the grizzly is composed of rollersarranged in parallel spaced relation, and all driven in the samedirection.

In the drawings Figure 1 is a side view of the improved grizzly,

Fig. 2.is a top plan View, I Fig. 3 is a side view of one of. thesprocket wheels,

- Fig. 4 is a longitudinal section of a roller, Fig. 5 is a similar Viewof another type of roller;

Fig. 6 is a section on the line 6-6 of Fig. 5,,.1ooking in the directionof the arrows a jacent to the line;

Fig. 7 is a transverse vertical section of.

another type of roller;

Fig. 8 is a longitudinal section of the shell of another type of roller;

Fig. 9 is a longitudinal section of one of.

the journal pins.

The improved grizzly is arranged upon a suitable supporting frame, to bedescribed,

' which is inclined as shown in order that the grizzly will be inclined.The grizzly is composed of a series of rollers arranged in parallelspaced relation, the spacing depending upon the purpose for which thegrizzly is to be used. Each roller, to be presently described in detail,has reduced journal pins at its ends which are received in bearings onthe frame.

The frame consists of side members, each of which is composed of twosimilar channel plates 1, the plates of each pair being arranged withtheir channels facing away from each other, and the webs of the saidplates of the pairs are held in parallel spaced relation by means ofrods 2. Each bers of the pairs. Spacing collars or washers 4 arearranged on the rods between the members of the respective pairs forproperly spacing the members of the pairs with re spect to each other,and the nuts 3-lock the members of the pairs on the collars and hold thepairs in spaced parallel relation.

In the type of roller shown in Figs. 1 to 4, a shaft core 5 is provided.having reduced journal pins 6 at its endsfor engaging bearings 7 held onthe upper edges of the pairs of channel plates of the frame. 7 A shell 8is mounted on this shaft, the said shell being of a diameter to. receivethe shaft, and the shell may be held to the shaft in any suitable ordesired manner, as, for instance,

the frame members 1, as shown more particularly in Fig. 4. Each end ofeach bearinghas a depending threaded stem 10, which passes downwardlybetween the channel bars 1 of the pairs, and these stems are engaged bynuts 11 below the lower flanges of the pairs .of channel plates. It willbe obvious that by loosening the nuts 11 the bearings may beindependently shifted longitudinally of the frame members to vary thespacing of the rollers with respect to each other. 7

The endmost roller at the upper end of the grizzly is provided with apulley 12 which is engaged by a belt 13, connected 7 with any suitablesource of power to drive the grizzly, and all of the rollers areconnected to rotate together by means of an endless chain 14, whichengages sprocket wheels 15 arranged on the journal pins at one end ofthe'rollers and at that end adjacent to the pulley 12. Each of thesesprocket wheels shown in Fig. 3 is keyed to the journal pin by means ofa key 16, and the under run of the chain is supported by rollers 17 toprevent sagging of the same. The journal pin of each roller whichcarries the sprocket wheel 15 has a reduced portion for receiving thesprocket wheel and the key 16 is prevented from escaping from the keywayby means of a Washer 17 which is held on the reduced portion of thejournal pin by means of a nut or the like. 7

The type of roller shown in Fig. 5 is composed of a shell 18 which has abore flaring at each end. J ournal pins 19 have heads-20 which fitwithin the flared ends of the bore of the shell, and the journal pinsare held in place by a rod 21 which extends through axial openings inthe journal pins and has its ends threaded, as shown, for engagement bynuts 22. At the outer end of that journal pin having the reduced portion23 for engagement by the sprocket wheel a Washer 2-1L is arranged on therod 21 between the end of the journal pin and the nut, for holding thekey in place. Dust collars 25 are arranged on the journal pin at the endof the shell, and the shell may be keyed to the heads 20, as shown.

In the embodiment of the invention shown in Fig. 7 the bore of. theshell 26 is cylindrical, and the shaft 27 is arranged within the bore,the shaft loosely fitting the bore. Dust collars 30 are arranged on thejournal pins 29 of the shaft, the said collars abutting the ends of theshell, and the shell is held on the shaft by any suitable means, as, forinstance, keys.

The keys which lock the shell of Figs. 5 and 8 to the journal pins arereceived in registering keyways 32 and 33 in the shell and in the headrespectively. In each construction of roller it will be noticed that thedust collars extend slightly beyond the peripheral surface of theroller, to form a species of flange or rib at each end of the shell.

In operation, the material to be screened is passed down over therollers from any suitable feeding mechanism, the said rollers beingadjusted apart from each other the proper distance for the purposedesired. It will be obvious that in order to make more than oneclassification of the ore by the grizzly, the rollers may be varied asto their spaces. As, for instance, the first few rollers may be set tohandle the finest, the other rollers being adjusted to pass the coarserrock, the very coarse'rock being passed over the endof the grizzly intothe bin. If a crusher or other machine is used, for reducing theoversize, the grizzly becomes an automatic feeder. The shells may beeither smooth or roughened, as may be desired. I claim A frame forroller grizzlies consisting of a pair of spaced apart side members eachcomprising a pair of vertical channel beams having a vertlcal web andtop and bottoms flanges, the channels of each pair faeingtb'fi outwardlyaway from each other, and the, webs spaced from each other constituting.a continuous vertical slot from end to end, tie bolts passing throughsaid channel beams, and connecting the side members, spacing blocks onsaid rods between the vertical web-s, nuts threaded on said tie rodsabutting the outer faces of said webs of each pair, a series of bearingblocks mounted on the upper flanges of the beams and bearing on eachside of the slot so formed, stems projecting downwardly from eachbearing block between the webs,-and nuts on the lower ends of said stemsand engaging the lower flanges of the beams, whereby the bearing blocksmay be uniformly adjusted longitudinally, to vary the distance betweenrollers journaled thereon, and then held in, such adjusted relation.

LEO rinses,

